/Engine/Source/Runtime/UMG/Public/Slate/SObjectWidget.h
Called when an analog value changes on a button that supports analog
Returns whether the event was handled, along with other possible actions
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnAnalogValueChanged ( const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry, const [FAnalogInputEvent](API\Runtime\SlateCore\Input\FAnalogInputEvent) & InAnalogInputEvent )